Convenient Syntheses of Biologically Relevant Vinyl and Divinyl Phosphates by Selective Dealkylation of the Corresponding Phosphites
作者:Nanjing Zhang、John E. Casida
DOI:10.1055/s-2000-7109
日期:——
Reactions of diethyl vinyl phosphite and divinyl methyl phosphite with iodine produce exclusively dealkylated intermediates, the highly reactive vinyl and divinyl phosphoroiodidates, which can be used as efficient phosphorylation reagents to prepare a variety of vinyl and divinyl organophosphorus compounds. Examples are given for the ethyl vinyl and divinyl analogs of the potent diethyl phosphate anticholinesterase agents diazoxon, chlorpyrifos oxon and paraoxon.
二乙基乙烯膦和二乙烯基甲基膦与碘的反应产生唯一的去烷基化中间体,即高度活泼的乙烯基和二乙烯基膦碘化物,它们可用作高效的膦酰化试剂,用于制备多种乙烯基和二乙烯基有机磷化合物。以强效的二乙基磷酸酯抗胆碱酯酶剂二唑克松、氯吡硫磷氧类似物和对氧磷的乙基乙烯基和二乙烯基类似物为例。